Andrew Bacevich

Andrew J. Bacevich Jr. (, ; born 5 July 1947) is an American historian specializing in international relations, security studies, American foreign policy, and American diplomatic and military history. He is professor emeritus of international relations and history at the Boston UniversityFrederick S. Pardee School of Global Studies.

He is a retired career officer in the Armor Branch of the United States Army, retiring in the rank of colonel. He is former director of Boston University's Center for International Relations (from 1998 to 2005), now part of the Pardee School of Global Studies. Bacevich is cofounder and president of the Quincy Institute for Responsible Statecraft.

He has been "a persistent, vocal critic of the U.S. occupation of Iraq, calling the conflict a catastrophic failure." In March 2007, he described George W. Bush's endorsement of such "preventive wars" as "immoral, illicit, and imprudent." His son, Andrew John Bacevich, also an Army officer, died fighting in the Iraq War in May 2007.

In July 2024, he signed an open letter against inviting Ukraine into NATO.

In 2016, Bacevich argued that U.S. militarization of the Greater Middle East dated to the Carter administration, arguing that the stated U.S. goals of intervention masked a broader objective of demonstrating American exceptionalism through military dominance.